Roller bearing journal box



Mam 22, 193.2. T. KURTZ .O 1,850,554

ROLLER BEARING JOURNAL BOX Filed Nov. 27, 1928 INVENT 40' fhg-nas urz ATTORNEY Patented Mar. 22, 1932 UNITED s'rATes rArE-NTL orifice f THOMAS nun'rz or SEATTLE, WASHING-Ton y not-LER BEARING JOURNAL Box Application Vmea novemberav, 1928. serial No. 322,28*?.

I moving thecollar at the end 'of the shaft and without changing the frame in 'which the bearing is locate Another object` of the invention is to pro j vide a journal for railway coaches that hasa i3 higher degree of eliciency than' the bronze bushing bearings now used which can be installed without changingrthe' frame or shaft.

Another object of the invention is toprovid-e a Ajournal for the shafts of railway coaches which may readily be removed and replaced'. f

Av further object of the invention is toproz vide a jointed roller frame for a roller bearing which is adaptable to b'efplaced over the .i 25 end of 'afv railway' coach shaft.

And a' still further object or the invention is to provide a roller journal Vbox forrailway coaches whichrma'y readily ber` removed and replaced without changing the shaft or frame and which is vof a simple and economical construction. p

`Withl these ends in view the invention embodies, avv roller bearing with the rollers mounted in. two semi-'circular spacers adaptable to be joined together, a housing adaptable to be placed in a journalA frame, a' sleeve with a Atapered outer surface between the rollers'y andY housingj suitable closures at' the ends andy suitable removable thrust collars at the outer end;

Other features and advantages ofthe invention will appear from the following description taken in connection with the draw# ings,` wherein j Figure 1 Vis a longitudinalsection through thejournal box with part of' the rollers shown in fullf'and part broken away.`

Figure 2 is an end elevation with the cover plate removed andV partV of the shaft broken away;

Figure 3 Yis a cross section through the journal.

Figure 4 is a longitudinal section similar to .that shown in Figure 1, showing the upper portion of a journal of an alternate de: sign which is particularly adaptable for shafts of large diameters;

In the drawings the device isshown as it would be made, wherein numeral 1 indicat-es theV rollers of the roller bearings nu` mei-al 2 the housing and numeral 3 the shaft.'

The rollers 1 may be made of any suitable size and ofany suitable material and the design shown are provided with openings 4 in their ends into which screws 5 and 6 in rings 7 and 8 extend as shown in Figure'l. Each of thel rings 7 and- 8 are made' in two semi-circular sections and Y connected with cross bars 9' between the rollers as shown.` At the ends oi. the semi-circular sections of the rin-gs 7 and v8 are bars 10l and 11, one' of which is provided with tongues 12 that ex; tend into recesses inthe other and these tongues are held by screws 13 having wires 14 extending through openings in theirends to prevent them working loose. In the de= sign shown vin Figure 3 the rings are broken away at the upper side only, however it will be understood that a similar connection` is provided at the opposite end-of the rings on the oppositeside of the center. It willi. be no'tedthatl the 'openings 4 in the ends ofthe rollers into which the pins 5' and 6 project are slightly larger than the' pins so' that the rollers will not bind on the pins It wil-ll be noted that the vouter endA of the axle or sha-ft 3 is provided with a collar 15 that is some1 what larger than the diameter of the shaft so that itis necessary to mount the rollers in a split framev or spacer and with the frame made in this manner it is possible to remove the' screws 14 and the' two semi-circular sec'- tions may be removedr from they sha-ft or in; stalled upon the shaft; indej'endently.y

' The rollers are vdirectly montedinla sleeve, 16 the outer surface of which taperstow'ard the ends as'sh'ownin Figure v1 to provide a small amount of play in the bearings to compensate yforthe rise andfall of the wheel in the shaft as it passes ever an uneven trackl Theisleevel is provided with ears 17 at the Y sides which fit into notches 18 in the housing r these ears are also' provided, with` openings 2 as shown in Figure 2.V These ears are provided with openings 19 in which pins or bars may be inserted to draw the sleeve outward or out of the end of the housing. These ears also prevent the sleeve rotating within the housing. At the end of the sleeve 16 is a ring 20 which is also provided with4 ears 21 that are similar to the ears 17 of the sleeve 16 vand 22 which are similar to the openings 19.V The outside diameter of the ring v2O corresponds with the inside diameter of the housing 2 and the inside diameter of the ring is slightly larger thanthe outside diameter of the collar, y15 at'the end of the shaft 3 so that the ringmay pass outward over the collar.

Between the ring and the collar 15 is a split thrust collar formed Aby two substantially semi-circular rings 23 `and 24 which are attached to the ring 20 by screws 25 as shown in Figure 2. These substantially semi-circular members are shaped so that they may. be removed between the outer surface of the col-V lar 15 and the innerv surface of the housing, the larger radiusbeing equal to the radius of the internal diameter of the'housing and the smaller radius being equal to the radius of the collar ,15. These members are positioned as shown in Figure 2 and it will be observedthat the collar 15 will engage f them as the shaft k3 moves inward. The outer and .35 at the top and bottom which it into the frame,l and theseanges `are provided with 'bolt holes 36v through which the bolts of the frame may pass. The sides ofthe housing are also recessed as shown at they points 37 to clear the' bolts. This box as hereinbefore described `is particularly adaptable to be placed intothe frame of comparatively small axles and may fit into the'frame between the bolts which pass through the Vwheels 36 Without changing the frame or location of the bolts and also may be installed without changing the axle or the shaft.

n' The design shown 1n Figure 4 is particu-L larly adaptablefor axles of a larger diameter,

` howeverit is understood thatfit mayzalso be usedffor the journalsshown iny Figures 1 to 3. 'In the'des'ign shown iii/Figure 4 the housing 2'is provided with recesses 38 through ends ofthe rollers.

are provided in two units instead of oneY continuous roller and it will also be understood that Vas many units as may be desired may be provided. The rollers are held between rings l39 and 40 which'are similar tothe rings 7 and 8 and are attached to the rings by pins 41 which extend into enlarged holes 1n the The rollers are mounted in a sleeve42vwhich is similar to the sleeve '16 and it'will be noted that the outer surface of this sleeve is made straight instead of being tapered as shown in Figure 1. It will be understood, however, that .the outer surface of this sleevemay also be tapered and also that the outer surface of the sleeve shown iny Figure 1 may bemade straight if desired.

It willbe understoodthat other changes may be made in the construction withouty def parting from the .spirit ofthe invention, one of whichchanges may be in the design or arrangementiof the housing, another may be in theuse of'closures of a different type at'the ends, another may kbe in the Vuse of'rother means for holding the rollersor in the-ary rangement of the spacersand another change may lbe in the use of'other means fortrans-y mitting the thrust romthe collar at the end of theshaft to the housing. f i f.

The constructiony will be readilyy understood from the foregoing description.-k Invusethe device may be installed by placing the cover 28 over the end'of the shaft, then placing vthe two sections of rollers around the endof the shaft and attaching the sections together by the screws. 13 asshown. The sleeve V16 may then be placed 'over the rollers and-thehousing placed over the sleeve. The ring20 may then `be inserted and the thrust rings23 Vand 24 inserted between the ring 20 and the 'collar 15 and then bolted to the ring. 20; 'The cover 26 maythen lbe attached to the outer `end of the casing andthe cover 28 to the inner end. The bolts may then be passed through the openings 36 to hold the device in place.

Itvwilltherefore be Vobserved that the device mayv readily be installed andfby thewsame process Vmay readily be removed and `when in use will provide acomparatively frictionless bearing which will withstandV theenormous vload of a railway coach and which may readily be installed withoutchanging'the design of the frame or axle of the coach. f

Havingthus fully described the invention,

what I claim as new and desire to secure by Letters Patent, is:y l '5' i In a ournal of the class described, aV hous# mg adaptable to fit into the' ournalframe of a rallway car with the axle extending'therein, rollers positioned around the end of the axle,

va split frame in which vthe said rollers'are mounted, means for holding the sectionszof the frame together, a sleeve with a tapered outer surface which tapers from a large diameter at the center to a smaller diameter at the ends, over the rollers and Within the housing, a collar at the outer end of the sleeve With lugs extending into notches in the housing, a readily removable friction ring between the said collar and the permanent collar at the outer end of the axle,v a. suitable cap forming a closure at the outer end of the said housing, a collar at the inner end of the housing engaging the tapered sleeve and transmitting the thrust from the collar at the end of the axle to the housing through the collars at the outer end, and a packing gland in the collar at the inner end.

In testimony whereof I aHX my signature.

THOMAS KURTZ. 

